How can I stop water from accumulating in the dashboard when I turn on the A/C?

Every time I start the a/c a few minutes later I start noticing that under the dashboard starts filling up with water (its inside like a box which already fried my radio cause all the wires get very wet).

This box then fills up I guess, leaks and fills my carpet with water. Another thing I have noticed is that the defrost and feet vent dont work, only the front vents work. All of this started happening almost at the same time. They were working fine, it all happen from one day to another.